TIP! If you you have several tracks to send, sometimes it's easier to zip all of your files into a single folder and upload that. Instructions below:Step 1:Place all of your files in a folder.Step 2:Compress the folder. (create .zip)In Windows: select the folder > right click > Send To > Compressed Folder.In Mac OSX: select the folder > right click (or control click) > compress "yourfolder ".